linux-kernel - Re: [PATCH] futex: Calculate the futex key based on a tail page for file-based futexes

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Message-ID: <1465375331.3944.8.camel@gmail.com>
Date:	Wed, 08 Jun 2016 10:42:11 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	Mel Gorman <mgorman@...e.de>
Cc:	Peter Zijlstra <peterz@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
	Davidlohr Bueso <dbueso@...e.de>,
	lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] futex: Calculate the futex key based on a tail page for
 file-based futexes

On Wed, 2016-06-08 at 09:04 +0100, Mel Gorman wrote:
> On Tue, Jun 07, 2016 at 07:52:59PM +0200, Mike Galbraith wrote:
> > On Tue, 2016-06-07 at 19:50 +0200, Peter Zijlstra wrote:
> > > On Tue, Jun 07, 2016 at 01:30:17PM +0100, Mel Gorman wrote:
> > > > Signed-off-by: Mel Gorman <mgorman@...hsingularity.net>
> > > 
> > > Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>
> > 
> > Wants a stable tag so it gets auto-snarfed by Greg?
> 
> Can I assume it passed tests for you?

While I didn't test this specific patch, modulo 'tail' vs 'pinned',
it's identical to the three liner I tested to confirm that the
get/put_page() bits I added were in indeed superfluous.. so yeah, it
definitely squashes buglet.

	-Mike